1209 / 1575
STORME 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
6
P0004
85
Signal Above Allowable
Range.
This fault gets logged If the difference
between the rail pressure demand and
the rail pressure feedback is greater
than a calibrated maximum threshold for
rail pressure in IMV mode.
EMS ECU takes following recovery
actions:
1.
Disables SPC strategy, no more
sPC trim update.
2.
Applies reduce torque 1 mode
:(60% of torque).
3.
Disables cylinder balance
correction, diagnostics and tooth
learning strategy.
4.
Disables cruise control function.
1.
Check 30A fuse connected to EMS power relay and battery
(+ve) power supply is not blown off. Replace if required
2.
Check electrical continuity between ECU pin no A38, A35 &
A19 to Rail pressure sensor connector no 3, 1, 2. Check
whether the rail pressure sensor signal pin A35 is either shorted
to battery/ground. If so then rectify the wiring harness
connections to make them inline with circuit schematics.
3.
Check electrical continuity of wiring harness between ECU pin
A77 and IMV connector pin 2 & EMS main relay supply and
IMV connector pin 1. Rectify wiring harness connections in
case of any issue.
4.
Check whether the IMV control pin of EMS A77 is short
circuited to ground/battery because of wrong wiring harness
connections. If so rectify the wrong connections to make the
connections inline with circuit schematics.
5.
Check IMV internal resistance whether it is according to the
design specifications (5.3 ohms at 20 degrees C). Replace IMV
if the resistance is not according to specifications.
6.
Check whether adequate fuel level is available in the tank.
7.
Check high pressure fuel lines for leakage.
8.
Check fuel filter is not clogged.
9.
Check low pressure fuel lines for air entry.
10.
Check & ensure IMV and rail pressure sensor connectors for
proper fitment.
11.
Check rail pressure sensor for oxidation, rust etc., if
observed clean deposit.
12.
Check harness for damages; Replace / Repair if harness is
damaged.
13.
Check ECU pins and connector, Replace if found defective.
14.
If vehicle is unable to start the perform 'Static injector back
leak test', Please check if any injector back leak is abnormally
high compared to other injectors, then replace corresponding
injectors.
15.
If vehicle is able to start then start the vehicle and perform
'Dynamic IMV test' - If test result shows IMV is faulty then
replace IMV.
16.
If vehicle is able to start then start the vehicle and perform
'Dynamic injector back leak test', Please check if any injector
back leak is abnormally high compared to other injectors, then
replace corresponding injectors.
17.
If vehicle is able to start then start the vehicle and perform
"Pump pressure build capacity test' - If test result shows not ok
then replace HP pump.
18.
Check whether High pressure pump is functioning
properly/able to build pressure else replace high pressure
ON
OFF